GG-10556 Fixed stuck on unmarshal security subject.
diff --git a/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java b/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java
index d51293e..a5ae5a9 100644
--- a/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java
@@ -631,8 +631,7 @@
 
                         Map<String, Object> attrs = new HashMap<>(locNode.attributes());
 
-                        attrs.put(IgniteNodeAttributes.ATTR_SECURITY_SUBJECT,
-                            spi.ignite().configuration().getMarshaller().marshal(subj));
+                        attrs.put(IgniteNodeAttributes.ATTR_SECURITY_SUBJECT, spi.marsh.marshal(subj));
                         attrs.remove(IgniteNodeAttributes.ATTR_SECURITY_CREDENTIALS);
 
                         locNode.setAttributes(attrs);
@@ -2586,8 +2585,7 @@
                             // Stick in authentication subject to node (use security-safe attributes for copy).
                             Map<String, Object> attrs = new HashMap<>(node.getAttributes());
 
-                            attrs.put(IgniteNodeAttributes.ATTR_SECURITY_SUBJECT,
-                                spi.ignite().configuration().getMarshaller().marshal(subj));
+                            attrs.put(IgniteNodeAttributes.ATTR_SECURITY_SUBJECT, spi.marsh.marshal(subj));
 
                             node.setAttributes(attrs);
                         }
@@ -2935,7 +2933,7 @@
                         else {
                             SecurityContext subj = spi.nodeAuth.authenticateNode(node, cred);
 
-                            SecurityContext coordSubj = spi.ignite().configuration().getMarshaller().unmarshal(
+                            SecurityContext coordSubj = spi.marsh.unmarshal(
                                 node.<byte[]>attribute(IgniteNodeAttributes.ATTR_SECURITY_SUBJECT),
                                 U.gridClassLoader());